NH0G16 Square Fuse 16A 500VAC/440VDC Equivalent & Substitute Parts

Part Overview

The NH0G16 is a square fuse rated for 16A at 500VAC/440VDC, manufactured by Littelfuse Inc. and classified as NH type with fast-blow response characteristics. This component is designed for motor protection applications and features an indicating function with VDE approval. The part is currently listed as obsolete, making identification of suitable substitute components essential for system maintenance and replacement requirements.

Substiute Parts

NH0G16

Littelfuse Inc.In Stock: 726NH0G16 Datasheet

Current PartRFQ

16NHG000B

Eaton - Bussmann Electrical DivisionIn Stock: 87516NHG000B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NH0G16 is determined by the following critical parameters:

• Current Rating: Must be 16A
• Voltage Rating - AC: Must be 500VAC minimum
• Fuse Class: Must be NH type
• Package / Case: Must be Rectangular, Blade configuration
• Mounting Type: Must require holder
• Approval Agency: VDE certification required

The substitute part 16NHG000B meets these core electrical and mechanical requirements. The primary difference is the DC voltage rating (250VDC versus 440VDC on the original), which represents a reduced voltage capability. This substitution is valid for applications where the DC voltage requirement does not exceed 250VDC.

Parameter Comparison

Engineering Selection Recommendations

The 16NHG000B substitute is suitable for applications where the system DC voltage requirement does not exceed 250VDC. Both parts maintain identical AC voltage ratings (500VAC), current ratings (16A), fuse class (NH), and mechanical package specifications. The substitute part offers the advantage of active product status and RoHS compliance, whereas the original NH0G16 is obsolete and non-compliant with RoHS directives. VDE approval is maintained across both components, ensuring regulatory compliance for industrial and motor protection applications.

Frequently Asked Questions (FAQ)

Q: Can the 16NHG000B be used as a direct replacement for NH0G16 in all applications?

A: The 16NHG000B is compatible with NH0G16 in applications where the DC voltage does not exceed 250VDC. If your system operates at 440VDC DC, the substitute part is not appropriate. Verify your system's actual DC voltage requirement before substitution.

Q: Are the physical dimensions compatible between these two parts?

A: Both parts use Rectangular, Blade package configuration and require a holder for mounting. However, the physical dimensions differ: NH0G16 measures 2.760" L x 2.100" W x 1.181" H, while 16NHG000B measures 2.126" L x 0.827" W x 1.693" H. Verify that your fuse holder accommodates the substitute part's dimensions.

Q: What is the significance of the RoHS compliance difference?

A: The 16NHG000B is RoHS compliant, whereas the NH0G16 is non-compliant. For new designs or systems subject to RoHS regulations, the substitute part is the appropriate choice. For legacy systems, either part may be acceptable depending on regulatory requirements in your jurisdiction.

Q: Are both parts VDE approved?

A: Yes, both the NH0G16 and 16NHG000B carry VDE approval, ensuring compliance with European electrical safety standards for industrial and motor protection applications.

Q: What does "Fast Blow" response time mean?

A: Fast Blow indicates the fuse responds quickly to overcurrent conditions, providing rapid circuit protection. This characteristic is suitable for motor protection applications where quick disconnection is required to prevent equipment damage.